AN EIGENVALUE THEORY OF CIRCULAR BIREFRINGENCE AND DICHROISM IN A NONMAGNETIC CHIRAL MEDIUM

被引:39
作者
RAAB, RE
CLOETE, JH
机构
[1] Department of Physics, University of Natal, Pietermaritzburg, 3200
[2] Department of Electrical and Electronic Engineering, University of Stellenbosch, Stellenbosch
关键词
D O I
10.1163/156939394X00759
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
By means of known constitutive relations for the DBAR and HBAR fields, which include both electric quadrupole and magnetic dipole terms, an eigenvalue theory is developed for electromagnetic wave propagation in an absorbing chiral medium. The theory allows the polarization eigenvectors to be determined, which the medium supports, and also their refractive indices and absorption coefficients. Uniaxial and cubic crystals, as well as an ideal gas, are treated in this way, and expressions are derived for their circular birefringence and dichroism in terms of property tensors of the medium. These expressions are shown to be independent of the arbitrary origin to which the multipole moments are referred. The theory is also applicable to artificial chiral materials which are ''optically active'' in the microwave regime.
引用
收藏
页码:1073 / 1089
页数:17
相关论文
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